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Finding the Fourth Proportional to 675,424.32, 931,994.28 and 385,073.34

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Solution

The fourth proportional to 675,424.32, 931,994.28 and 385,073.34 is: 531,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,424.32 : 931,994.28 = 385,073.34 : x
  2. Step 2: Convert to fraction form
    675,424.32/931,994.28 = 385,073.34/x
  3. Step 3: Cross multiply
    675,424.32x = 931,994.28 × 385,073.34
  4. Step 4: Simplify right side
    675,424.32x = 358,886,150,260.50
  5. Step 5: Solve for x
    x = 358,886,150,260.50/675,424.32
  6. Step 6: Final answer
    x = 531,349.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.